; RUN: opt %loadPolly -polly-detect -polly-process-unprofitable=false -analyze \ ; RUN: -polly-allow-nonaffine-loops < %s | FileCheck %s ; ; Even if we allow non-affine loops we can only model the outermost loop, all ; other loops are boxed in non-affine regions. However, the inner loops can be ; distributed as black-boxes, thus we will recognize the outer loop as profitable. ; ; CHECK: Valid Region for Scop: for.cond => for.end.51 ; ; void f(int *A) { ; for (int i = 0; i < 100; i++) { ; // Non-affine ; for (int j = 0; j < i * i; j++) ; for (int k = 0; k < i; k++) ; A[i]++; ; // Non-affine ; for (int j = 0; j < i * i; j++) ; // Non-affine ; for (int k = 0; k < j; k++) ; A[i]++; ; // Non-affine ; if (A[i]) ; for (int j = 0; j < 100; j++) ; for (int k = 0; k < j * j; k++) ; A[i]++; ; } ; } ; target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" define void @f(i32* %A) { entry: br label %for.cond for.cond: ; preds = %for.inc.49, %entry %indvars.iv5 = phi i64 [ %indvars.iv.next6, %for.inc.49 ], [ 0, %entry ] %indvars.iv = phi i32 [ %indvars.iv.next, %for.inc.49 ], [ 0, %entry ] %exitcond9 = icmp ne i64 %indvars.iv5, 100 br i1 %exitcond9, label %for.body, label %for.end.51 for.body: ; preds = %for.cond br label %for.cond.1 for.cond.1: ; preds = %for.inc.8, %for.body %j.0 = phi i32 [ 0, %for.body ], [ %inc9, %for.inc.8 ] %tmp = mul nsw i64 %indvars.iv5, %indvars.iv5 %tmp10 = sext i32 %j.0 to i64 %cmp2 = icmp slt i64 %tmp10, %tmp br i1 %cmp2, label %for.body.3, label %for.end.10 for.body.3: ; preds = %for.cond.1 br label %for.cond.4 for.cond.4: ; preds = %for.inc, %for.body.3 %k.0 = phi i32 [ 0, %for.body.3 ], [ %inc7, %for.inc ] %exitcond = icmp ne i32 %k.0, %indvars.iv br i1 %exitcond, label %for.body.6, label %for.end for.body.6: ; preds = %for.cond.4 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv5 %tmp11 = load i32, i32* %arrayidx, align 4 %inc = add nsw i32 %tmp11, 1 store i32 %inc, i32* %arrayidx, align 4 br label %for.inc for.inc: ; preds = %for.body.6 %inc7 = add nuw nsw i32 %k.0, 1 br label %for.cond.4 for.end: ; preds = %for.cond.4 br label %for.inc.8 for.inc.8: ; preds = %for.end %inc9 = add nuw nsw i32 %j.0, 1 br label %for.cond.1 for.end.10: ; preds = %for.cond.1 br label %for.cond.12 for.cond.12: ; preds = %for.inc.26, %for.end.10 %indvars.iv1 = phi i32 [ %indvars.iv.next2, %for.inc.26 ], [ 0, %for.end.10 ] %tmp12 = mul nsw i64 %indvars.iv5, %indvars.iv5 %tmp13 = sext i32 %indvars.iv1 to i64 %cmp14 = icmp slt i64 %tmp13, %tmp12 br i1 %cmp14, label %for.body.15, label %for.end.28 for.body.15: ; preds = %for.cond.12 br label %for.cond.17 for.cond.17: ; preds = %for.inc.23, %for.body.15 %k16.0 = phi i32 [ 0, %for.body.15 ], [ %inc24, %for.inc.23 ] %exitcond3 = icmp ne i32 %k16.0, %indvars.iv1 br i1 %exitcond3, label %for.body.19, label %for.end.25 for.body.19: ; preds = %for.cond.17 %arrayidx21 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv5 %tmp14 = load i32, i32* %arrayidx21, align 4 %inc22 = add nsw i32 %tmp14, 1 store i32 %inc22, i32* %arrayidx21, align 4 br label %for.inc.23 for.inc.23: ; preds = %for.body.19 %inc24 = add nuw nsw i32 %k16.0, 1 br label %for.cond.17 for.end.25: ; preds = %for.cond.17 br label %for.inc.26 for.inc.26: ; preds = %for.end.25 %indvars.iv.next2 = add nuw nsw i32 %indvars.iv1, 1 br label %for.cond.12 for.end.28: ; preds = %for.cond.12 %arrayidx30 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv5 %tmp15 = load i32, i32* %arrayidx30, align 4 %tobool = icmp eq i32 %tmp15, 0 br i1 %tobool, label %if.end, label %if.then if.then: ; preds = %for.end.28 br label %for.cond.32 for.cond.32: ; preds = %for.inc.46, %if.then %j31.0 = phi i32 [ 0, %if.then ], [ %inc47, %for.inc.46 ] %exitcond4 = icmp ne i32 %j31.0, 100 br i1 %exitcond4, label %for.body.34, label %for.end.48 for.body.34: ; preds = %for.cond.32 br label %for.cond.36 for.cond.36: ; preds = %for.inc.43, %for.body.34 %k35.0 = phi i32 [ 0, %for.body.34 ], [ %inc44, %for.inc.43 ] %mul37 = mul nsw i32 %j31.0, %j31.0 %cmp38 = icmp slt i32 %k35.0, %mul37 br i1 %cmp38, label %for.body.39, label %for.end.45 for.body.39: ; preds = %for.cond.36 %arrayidx41 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv5 %tmp16 = load i32, i32* %arrayidx41, align 4 %inc42 = add nsw i32 %tmp16, 1 store i32 %inc42, i32* %arrayidx41, align 4 br label %for.inc.43 for.inc.43: ; preds = %for.body.39 %inc44 = add nuw nsw i32 %k35.0, 1 br label %for.cond.36 for.end.45: ; preds = %for.cond.36 br label %for.inc.46 for.inc.46: ; preds = %for.end.45 %inc47 = add nuw nsw i32 %j31.0, 1 br label %for.cond.32 for.end.48: ; preds = %for.cond.32 br label %if.end if.end: ; preds = %for.end.28, %for.end.48 br label %for.inc.49 for.inc.49: ; preds = %if.end %indvars.iv.next6 = add nuw nsw i64 %indvars.iv5, 1 %indvars.iv.next = add nuw nsw i32 %indvars.iv, 1 br label %for.cond for.end.51: ; preds = %for.cond ret void }